}

        public void setPlainText(String plainText) {
            this.plainText = plainText;
        }

        @Override
        public OptionalThing<String> getSavedSubject() {
            return OptionalThing.ofNullable(subject, () -> {
                throw new IllegalStateException("Subject not found");
            });
        }

        @Override

        final StringBuilder buf = new StringBuilder(100);
        buf.append("{\"text\":\"");
        buf.append(LF);
        buf.append(StringEscapeUtils.escapeJson(discloser.getSavedSubject().orElse(StringUtil.EMPTY).trim()));
        buf.append(LF).append("```");
        buf.append(LF).append(StringEscapeUtils.escapeJson(discloser.getSavedPlainText().orElse(StringUtil.EMPTY).trim()));